/Engine/Plugins/Experimental/MeshModelingToolsetExp/Source/MeshModelingToolsEditorOnlyExp/Public/BspConversionTool.h
Select all brushes that satisfy the current settings.
[UFUNCTION](Programming/UnrealArchitecture/Reference/Functions)(CallInEditor, Category=SelectionOperations, Meta=(DisplayName="Select All Valid Brushes", DisplayPriority=1)) void SelectAllValidBrushes()